var NoobSlide = new Class({

	initialize: function(params){
		this.items = params.items;
		this.mode = params.mode || 'horizontal';
		this.modes = {horizontal:['margin-left', 'width'], vertical:['margin-top', 'height']};
		this.size = params.size || 240;
		this.box = params.box.setStyle(this.modes[this.mode][1],(this.size*this.items.length)+'px');
		this.button_event = params.button_event || 'click';
		this.handle_event = params.handle_event || 'click';
		this.onWalk = params.onWalk || null;
		this.currentIndex = null;
		this.previousIndex = null;
		this.nextIndex = null;
		this.interval = params.interval || 5000;
		this.autoPlay = params.autoPlay || false;
		this._play = null;
		this._direct = true;
		this.handles = params.handles || null;
		if(this.handles){
			this.addHandleButtons(this.handles);
		}
		this.buttons = {
			previous: [],
			next: [],
			play: [],
			playback: [],
			stop: []
		};
		if(params.addButtons){
			for(var action in params.addButtons){
				this.addActionButtons(action, $type(params.addButtons[action])=='array' ? params.addButtons[action] : [params.addButtons[action]]);
			}
		}
		this.fx = new Fx.Tween(this.box,$extend((params.fxOptions||{duration:500,wait:false}),{property:this.modes[this.mode][0]}));
		this.walk((params.startItem||0),true,true);
	},

	addHandleButtons: function(handles){
		for(var i=0;i<handles.length;i++){
			handles[i].addEvent(this.handle_event,this.walk.bind(this,[i,true]));
		}
	},

	addActionButtons: function(action,buttons){
		for(var i=0; i<buttons.length; i++){
			switch(action){
				case 'previous': buttons[i].addEvent(this.button_event,this.prevBtn.bind(this,[true])); break;
				case 'next': buttons[i].addEvent(this.button_event,this.nextBtn.bind(this,[true])); break;
				case 'play': buttons[i].addEvent(this.button_event,this.play.bind(this,[this.interval,'next',false])); break;
				case 'playback': buttons[i].addEvent(this.button_event,this.play.bind(this,[this.interval,'previous',false])); break;
				case 'stop': buttons[i].addEvent(this.button_event,this.stop.bind(this)); break;
			}
			this.buttons[action].push(buttons[i]);
		}
	},
	
	prevBtn: function(manual){
		this._direct = false;
		this.walk((this.currentIndex>0 ? this.currentIndex-1 : this.items.length-1),manual);
	},

	nextBtn: function(manual){
		this._direct = true;
		this.walk((this.currentIndex < this.items.length-1 ? this.currentIndex + 1 : 0),manual);
	},

	previous: function(manual){
		if (this.currentIndex <= 0) {
			this._direct = true;
			this.play(this.interval, 'next', false);
		} else {
			this.walk((this.currentIndex>0 ? this.currentIndex-1 : this.items.length-1),manual);
		}
	},

	next: function(manual){
		if (this.currentIndex >= this.items.length - 1) {
			this._direct = false;
			this.play(this.interval, 'previous', false);
		} else {
			this.walk((this.currentIndex < this.items.length-1 ? this.currentIndex + 1 : 0),manual);
		}
	},

	play: function(interval, direction, wait){
		this.stop();
		if(!wait){
			this[direction](false);
		}
		this._play = this[direction].periodical(interval,this,[false]);
	},

	stop: function(){
		$clear(this._play);
	},

	walk: function(item, manual, noFx){
		if(item != this.currentIndex){
			this.currentIndex = item;
			this.previousIndex = this.currentIndex + (this.currentIndex > 0 ? -1 : this.items.length - 1);
			this.nextIndex = this.currentIndex + (this.currentIndex < this.items.length - 1 ? 1 : 1 - this.items.length);
			if(manual){
				this.fx.cancel();
				this.stop();
			}
			if(noFx){
				this.fx.cancel().set((this.size*-this.currentIndex)+'px');
			}else{
				this.fx.start(this.size*-this.currentIndex);
			}
			if(manual && this.autoPlay){
				if (this._direct) {
					this.play(this.interval, 'next', true);
				} else {
					this.play(this.interval, 'previous', true);
				}
			}
			if(this.onWalk){
				this.onWalk((this.items[this.currentIndex] || null), (this.handles && this.handles[this.currentIndex] ? this.handles[this.currentIndex] : null));
			}
		}
	}
	
});